I would study it, and I understand almost everything, except for one thing: Is this actually done using Maya? I haven't worked with this program, and I can't find it right now. If it's done using Maya, then everything will become clear to me. Because I haven't been able to do this using the editor yet...
Thank you for the recommendation ;) This question has interested me. However, it is currently impossible to download the corresponding utilities due to
<<---------------- a not very good factor for a fast Internet connection ;)
If you really have the time and, most importantly, the desire, I can give you a link after the weekend, but I'll tell you right away that the size is large ;)